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US Airways was -- eventually -- embarrassed and apologetic after tweeting a pornographic photo of a woman lying on a bed with a plane inserted into her vagina. The image link was sent to a Twitter user with the message: "We welcome feedback, Elle. If your travel is complete, you can detail it here for review and follow-up."

And it stayed on the airline's account for an hour before it was noticed and an apology was sent out, with the assurance the company is "investigating."

We apologize for an inappropriate image recently shared as a link in one of our responses. We’ve removed the tweet and are investigating.